When I first went in to BIOS today the settings in Q-fan was on standard, it have been working with that setting for 2 years. I did change it to turbo ( 100% CPU fan speed ) today and it did not change anything for me.

But I went in again after your reply and change it to manual and turned everything I could find on CPU fan speed to 100% and after the reboot I can control my H100i v2 again. So thanks!
I hope it will work now, It's strange that it have been working for 2 years on those settings in BIOS and then just stop.